Replacing Water Heaters
Written by Elizabeth Wood
Editor In Chief, United Home Improvement

The most common types of water heaters include natural gas, LP-gas, and electric water heaters. Among many other household plumbing projects, replacing your water heater is one that you will have to face at some point or another. Generally, water heaters reveal signs of replacement in the form of a leak. This usually means that your tank is corroded. The replacement process requires much knowledge and skill and is often a job suited for a service professional.

The first step in replacing your water heater is to remove your old water heater. You should begin this process by shutting off the gas or electricity to your old heater. With electric water heaters, simply shutting of the electricity does not guarantee that the wires will be dead. Make sure to test the wires for electric power before touching them.

The next step is to drain the water from the heater. This water may be very hot so use caution when draining. Keep in mind, the cold water pipe of your heater will most likely have a shutoff valve. Using this valve will allow the water heater to be disconnected without shutting down the entire home's water supply.

Once the water is drained, you will then be able to remove the heater. Gas heaters require you to separate the vent pipe from the draft hood and disconnect the gas line before removal. Also, as mentioned earlier, verify that the wires are dead on electric water heaters. Only then will it be safe to disconnect the cable wires and remove the heater.

Once your old heater is removed, you will be required to transfer a new heater to its place. This may require the use of a dolly or some sort of a cart. After the heater is positioned, you will need to install the new heaters draft hood. In addition, make sure with gas water heaters that you install proper venting. After the vent piping is connected, you can begin to make hot and cold water connections.

*When installing a new gas heater, make sure that the gas you have is compatible with your new heater. Also, view the heaters owner manual to verify that the combustion needs will be met, as well any required clearances. Once installed, make sure to check for leaks with a dish detergent solution.

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